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Finding the Fourth Proportional to 299,315.40, 448,973.10 and 276,505.80

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Solution

The fourth proportional to 299,315.40, 448,973.10 and 276,505.80 is: 414,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,315.40 : 448,973.10 = 276,505.80 : x
  2. Step 2: Convert to fraction form
    299,315.40/448,973.10 = 276,505.80/x
  3. Step 3: Cross multiply
    299,315.40x = 448,973.10 × 276,505.80
  4. Step 4: Simplify right side
    299,315.40x = 124,143,666,193.98
  5. Step 5: Solve for x
    x = 124,143,666,193.98/299,315.40
  6. Step 6: Final answer
    x = 414,758.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.